What the converter does
- Preserves the source width and height.
- Creates a WEBP file in your browser.
- Keeps the source file untouched.
Free PNG to WebP Converter
Convert PNG images to WebP while preserving dimensions and transparency.
Runs on your device — no upload required
Drop or choose imagesChoose files from your device or drag them hereYou can also paste an image with Ctrl+V / Cmd+V.
PNG to WebP changes the file encoding while preserving the original pixel dimensions. There is no hidden resize and no server upload.
How OpenFileTools processes it
Local processing, explicit choices.
OpenFileTools decodes the source into a temporary browser canvas and encodes the selected format locally. Closing the page releases the working data.
Quick technical summary
What this tool changes.
| Property | Behavior |
|---|---|
| Processing | Browser only; no image upload |
| Original | Never changed |
| Dimensions | Preserved |
| Transparency | Preserved |
Web delivery with transparency
WebP can preserve transparent areas while keeping the PNG's original dimensions. It is often useful for web delivery, but final size varies with image detail, transparency, and quality settings.
- The original PNG remains unchanged.
- Check destination support before using WebP.
- A format change does not improve source detail.
Questions, answered.
Does PNG to WebP keep transparency?
Yes, the current converter preserves alpha transparency.
Will WebP be smaller?
Often, but no size reduction is guaranteed.
Does conversion resize the PNG?
No. Dimensions remain unchanged.
Is my original replaced?
No. You download a separate WebP copy.